Other than a trip which might get the odd mention I will detail projects I am working on, what I want to be working on and what I have otherwise to report on.
I will update the individual projects as they advance.
As asked I have started to catalogue the references I have follow the link on the left where you can obtain them too. Want to email me wander over to qrz.com and you'll find my email address there. Also twitter @m1kta_qrp

However the chip and the boards are not available any more so...as a coupleothers asked directly by email and asked could it be homebrewed.... the originalSSM2165 is not available but a newer SSM2167 is available, from Farnell part2067797 (Digikey have it too but only in 1,000 units!)

Use a pot on pin 7 to adjust the effect on the lowest signals the data sheetsays:

Input signals below VDE are downward expanded; that is, a −1 dB change inthe input signal level causes approximately a −3 dB change in the outputlevel. As a result, the gain of the system is small for very small input signallevels, even though it may be quite large for small input signals above VDE. Theexternal resistor at Pin 7, RGATE, is used to set the downward expansionthreshold (VDE).

and pin 8 to adjust the compression, the lower the value of R the lower thecompression a 180K SMD resistor will do nicely... at 0R no compression at max Rthe compression will be X10 (way too much but ho hum).

You could a similar layout to the original from from OK1DCJ (SSM2165 was SOIC8this is 10 pin!)

Looks like a useful little project for fellow QRP SSB fans, anyone interested ifI put a PCB together and buy some SSM-2167 chips?

72

DomM1KTA

--- In GQRP@yahoogroups.com, "Feri" wrote:>> HI Dear Friends,>> I need a small help. I would like to build a small speech processor into> a microphone set. Only 5V is available for the unit. Do you have a> working sematic with reachable parts?> It could be very good to have when working with qrp in ssb modes.>> Thanks in advance!>> Feri -HA7BF-

Operating location from a top in alps c2600m

Now this was a perfect SOTA location, I stayed on top overnight and used the flag pole to my right to support a 40m/20m dipole, you can see the fixture I connected to, the little ring clamp, as soon as the cable car stopped for the night out came the radio gear, it even snowed! If I had taken 2m yagi would have been amazing location as line of sight was > 80miles, the Eiger and Jungfau (Bernese Oberland group) are in the photo over my right shoulder. Temp dropped to below minus 15 but the morning operating the grey line was fun 100 or so QSO SSB qrp as HB9/M1KTA/P.